JPS61249519A - Removing method for powder stuck on small body - Google Patents
Removing method for powder stuck on small bodyInfo
- Publication number
- JPS61249519A JPS61249519A JP60092546A JP9254685A JPS61249519A JP S61249519 A JPS61249519 A JP S61249519A JP 60092546 A JP60092546 A JP 60092546A JP 9254685 A JP9254685 A JP 9254685A JP S61249519 A JPS61249519 A JP S61249519A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- small
- small object
- mesh
- corona discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ディーゼルエンジン排ガスに含まれる未燃カ
ーボンの除去、石炭火力用ＥＰ灰処理装置における未燃
カーボンの分離、噴流床式ガス化炉における粒子の除去
等に適用される小物体に付着したパウダの除去方法に関
する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to the removal of unburned carbon contained in diesel engine exhaust gas, the separation of unburned carbon in EP ash processing equipment for coal-fired power plants, and the use of entrained bed gasifiers. This invention relates to a method for removing powder attached to small objects, which is applied to the removal of particles, etc.
（従来の技術〕
ディーゼルエンジン排ガスに含まれる未燃カーボンの除
去、石炭火力用ＥＰ灰処理装置における未燃カーボンの
分離、噴流床式ガス化炉における粒子の除去等には、粒
状層集塵装置が多用される。(Prior art) Granular bed dust collectors are used to remove unburned carbon contained in diesel engine exhaust gas, separate unburned carbon in EP ash processing equipment for coal-fired power plants, remove particles in entrained bed gasifiers, etc. is often used.
第３図はその一例を示すもので、パウダ１を含んだ被処
理ガス２は、ガス入口３より流入して粒状層４を通過し
、粒状層４を構成する砂等の小物体５にパウダ１を捕捉
され、浄化ガス６となってガス出ロアより排出される。FIG. 3 shows an example of this, in which a gas 2 to be treated containing powder 1 flows in from a gas inlet 3, passes through a granular layer 4, and is deposited on small objects 5 such as sand constituting the granular layer 4. 1 is captured, becomes purified gas 6, and is discharged from the gas outlet lower.
一方、粒状層４を構成する小物体５は、常時、下方向へ
強制的に流下され、再生部８でパウダ１を除去された後
、再び粒状層４へ戻されて再利用される。On the other hand, the small objects 5 constituting the granular layer 4 are always forced to flow downward, and after the powder 1 is removed in the regeneration section 8, they are returned to the granular layer 4 and reused.
再生部８としては、第４図の如くパウダ１が付着した小
物体５にジェットエア９を吹付けてパウダ１を吹き飛ば
すエアジェツト式、あるいは第５図の如くパウダ１が付
着した小物体５をふるい１０にかけてパウダ１をふるい
落とすふるい式、さらには両者を組合わせた構成のもの
が、従来より採用されていた。なお、第５図中符号１１
はふるい１０を撮動させる加振装置である。The regeneration unit 8 may be an air jet type in which the powder 1 is blown off by blowing jet air 9 onto the small object 5 to which the powder 1 has adhered, as shown in FIG. Conventionally, a sieve type in which the powder 1 is sieved out over a sieve of 10, and a structure in which the two are combined have been employed. In addition, reference numeral 11 in Fig. 5
is a vibrating device that photographs the sieve 10.
エアジェツト式の再生部を採用すると、エア供給源が必
要となる。またジェットエア９で吹き飛ばされたパウダ
１が大気中に飛散するので、これを再捕集するための装
置が必要となる。If an air jet type regeneration unit is adopted, an air supply source is required. Furthermore, since the powder 1 blown off by the jet air 9 is scattered into the atmosphere, a device is required to collect it again.
また、ふるい式の再生部を採用すると、大形の加振装［
１１を備えなければならず、装置が大形かつ高価となる
問題があり、さらに、ふるい１０自体の摩耗が著しく、
パウダ１の除去に長時間を要するなどの問題もあった。In addition, if a sieve-type reproducing section is adopted, a large vibration exciter [
11, which makes the device large and expensive.Furthermore, the sieve 10 itself is subject to significant wear.
There was also a problem that it took a long time to remove the powder 1.
本発明はこのような問題を解消するためになされたもの
で、その目的は、小形かつ安価な手段で能率よくパウダ
の除去を行なうことができる、小物体に付着したパウダ
の除去方法を提供することにある。The present invention was made to solve these problems, and its purpose is to provide a method for removing powder attached to small objects, which can efficiently remove powder using a small and inexpensive means. There is a particular thing.
以上の目的を達成するために、本発明に係る小物体に付
着したパウダの除去方法は、コロナ放電極と対応電極と
の間に電圧を与えてコロナ放電を生じさせ、対応電極゛
に沿って小物体を移動させることにより、その小物体の
表面に付着した導電性パウダを対応電極に付着させて上
記パウダを小物体より剥離することを特徴とする。In order to achieve the above object, the method of removing powder attached to a small object according to the present invention involves applying a voltage between a corona discharge electrode and a corresponding electrode to generate corona discharge, and discharging powder along the corresponding electrode. By moving the small object, the conductive powder adhering to the surface of the small object is made to adhere to a corresponding electrode, and the powder is peeled off from the small object.
以上の構成では、小物体とパウダとの間に電気的な斥力
を生じさせて、パウダを小物体より剥離するので、エア
ジェツト式のようにパウダが大気中に飛散する問題は生
じない。また、ふるい式のように大形の加振装置のよう
なものを備える必要もなく、小形かつ安価な手段で、短
時間でパウダを除去することができる。In the above configuration, an electrical repulsion is generated between the small object and the powder to separate the powder from the small object, so there is no problem of the powder being scattered into the atmosphere as in the air jet type. Further, unlike the sieve type, there is no need to provide a large vibration device, and the powder can be removed in a short time using a small and inexpensive means.
第１図は本発明の第１実施例を示すもので、容器１２内
には放電極１３に対向させて、対応電極となる、導電性
メツシュ（又は多孔板）１４を傾斜させて配置する。そ
して、この導電性メツシュ１４を接地する。FIG. 1 shows a first embodiment of the present invention, in which a conductive mesh (or perforated plate) 14, which serves as a corresponding electrode, is disposed at an angle in a container 12, facing a discharge electrode 13. Then, this conductive mesh 14 is grounded.
一方、導電性パウダ１５が付着した小物体１６を導電性
メツシュ１４上に連続的に落下し、小物体１６を導電性
メツシュ１４に沿って下方向へ移動させるが、このとき
前記放電極１３と導電性メツシュ１４との間には電源装
置１７により高電圧をかけて、パウダ１５の粒子間、並
びに小物体１６とパウダ１５との間に電気的斥力を生じ
させるようにする。なお、図中１８は容器１２の底部を
、導電性メツシュ１４の下方の領域とそれ以外の領域と
に区画する仕切り板である。On the other hand, a small object 16 to which conductive powder 15 is attached is continuously dropped onto the conductive mesh 14, and the small object 16 is moved downward along the conductive mesh 14, but at this time, the discharge electrode 13 A high voltage is applied between the conductive mesh 14 and the powder 15 by a power supply 17 to generate electrical repulsion between the particles of the powder 15 and between the small object 16 and the powder 15. Note that 18 in the figure is a partition plate that divides the bottom of the container 12 into an area below the conductive mesh 14 and an area other than that.
したがって、小物体１６の表面に付着した導電性パウダ
１５は、小物体１６が導電性メツシュ１４の下端から容
器１２の底部に落下するまでの間に、小物体１６から剥
離され、導電性メツシュ１４を通してその下方に溜る。Therefore, the conductive powder 15 attached to the surface of the small object 16 is peeled off from the small object 16 before the small object 16 falls from the lower end of the conductive mesh 14 to the bottom of the container 12. It passes through and accumulates below it.
また、導電性パウダ１５を除去された小物体１６は、導
電性メツシュ１４の下端から落下して、仕切り板１８で
区画された別の空間に溜る。Further, the small object 16 from which the conductive powder 15 has been removed falls from the lower end of the conductive mesh 14 and accumulates in another space partitioned by the partition plate 18.
そこで、以上の構成では、小物体１６とパウダ５との間
に電気的な斥力を生じさせて、パウダ１５を小物体１６
より剥離するので、エアジェツト式のようなエア供給装
置は不要であり、またパウダが大気中に飛散することも
ないので再捕集のための措置も不要である。Therefore, in the above configuration, an electrical repulsion is generated between the small object 16 and the powder 5, and the powder 15 is moved to the small object 16.
Since the powder is easily separated, there is no need for an air supply device such as an air jet type, and since the powder is not scattered into the atmosphere, there is no need to take measures to collect it again.
また、ふるい式のように大形の加振装置のようなものを
備える必要もなく、小形かつ安価な手段で、短時間のう
ちにパウダを除去することができる。Further, unlike the sieve type, there is no need to provide a large vibration device, and the powder can be removed in a short time using a small and inexpensive means.
なお、上記実施例の変形として、放電極１３を接地し、
導電性メツシュ１４に高電圧を印加するようにしてもよ
い。In addition, as a modification of the above embodiment, the discharge electrode 13 is grounded,
A high voltage may be applied to the conductive mesh 14.
次に、第２図は本発明の第２実施例を示すもので、容器
１２内には回転ドラム２１が、その回転軸をほぼ水平方
向に向けて収容されている。この回転ドラム２１は、そ
の表面を、対応電極となる導電体で覆われており、その
導電体は接地されている。Next, FIG. 2 shows a second embodiment of the present invention, in which a rotating drum 21 is housed in a container 12 with its rotating shaft oriented substantially horizontally. The surface of the rotating drum 21 is covered with a conductor serving as a corresponding electrode, and the conductor is grounded.
一方、回転ドラム２１の表面には、導電性パウダ１５が
付着した小物体１６を連続的に落下させ、小物体１６を
回転ドラム２１の外周面に沿って下方向へ移動させるが
、このとき前記放電極１３と回転ドラム゛２１との間に
は電源装置１７により高電圧をかけて、パウダ１５の粒
子間、並びに小物体１６とパウダ１５との間に電気的斥
力を生じさせるようにしている。On the other hand, a small object 16 to which conductive powder 15 is attached is continuously dropped onto the surface of the rotating drum 21, and the small object 16 is moved downward along the outer peripheral surface of the rotating drum 21. A high voltage is applied between the discharge electrode 13 and the rotating drum 21 by a power supply 17 to generate electrical repulsion between the particles of the powder 15 and between the small object 16 and the powder 15. .
また、回転ドラム２１の外周面には、このドラム２１の
回転軸とほぼ同一高さ位置において小物体ストッパ２２
の一端を接近させている。回転ドラム２１の外周面と、
このストッパ２２の一端との間の隙間は、小物体１６を
通過させず、ドラム２１の外周面に付着したパウダ１５
は通過させる程度の大きさに設定される。上記小物体ス
トッパ２２の他端は下方向へ傾斜し、容器１２の底部に
設けられた仕切り板１８の上端に位置している。Further, a small object stopper 22 is provided on the outer peripheral surface of the rotating drum 21 at a position approximately at the same height as the rotating shaft of the drum 21.
One end of the two is close together. The outer peripheral surface of the rotating drum 21,
The gap between the stopper 22 and one end prevents the small object 16 from passing through, and prevents the powder 15 attached to the outer peripheral surface of the drum 21 from passing through.
is set to a size that allows it to pass through. The other end of the small object stopper 22 is inclined downward and is located at the upper end of a partition plate 18 provided at the bottom of the container 12.
さらに回転ドラム２１の外周面には、小物体ストッパ２
２とは反対側の部位において、ドクタ（かきとりバー）
２３の一端を接近させている。Furthermore, a small object stopper 2 is provided on the outer peripheral surface of the rotating drum 21.
In the part opposite to 2, use the doctor (scraping bar)
One end of 23 is brought closer.
回転ドラム２１の外周面と、ドクタ２３の一端との間の
ＰＪ閣は、ドラム２１の外周面に付着したパウダ１５を
かき落とすことができる程度に、極力小さく設定される
。The projecting distance between the outer peripheral surface of the rotating drum 21 and one end of the doctor 23 is set as small as possible to the extent that the powder 15 adhering to the outer peripheral surface of the drum 21 can be scraped off.
以上の構成において、小物体１６は回転ドラム２１の外
周面に沿って移動し、小物体ストッパ２２側にのり移り
、容器１２の底部に滑り落ちる。In the above configuration, the small object 16 moves along the outer peripheral surface of the rotating drum 21, moves to the small object stopper 22 side, and slides down to the bottom of the container 12.
一方、小物体１６の表面に付着した導電性パウダ１５は
、小物体１６が回転ドラム２１の外周面に沿って移動し
ている間に、放電極１３とドラム２１との間に印加され
た高電圧により生じた電気的斥力により小物体１６から
離れ、回転ドラム２１側に付着する。そして、ドラム２
１と小物体ストッパ２２との間の隙間を通り、ドクタ２
３でかき落とされて容器１２の底部に溜る。On the other hand, the conductive powder 15 attached to the surface of the small object 16 is exposed to the high voltage applied between the discharge electrode 13 and the drum 21 while the small object 16 is moving along the outer peripheral surface of the rotating drum 21. Due to the electrical repulsion generated by the voltage, the small object 16 is separated from the small object 16 and attached to the rotating drum 21 side. And drum 2
1 and the small object stopper 22, and the doctor 2
3 and accumulates at the bottom of the container 12.
したがって、この実施例においても、小物体１６とパウ
ダ５との間に電気的な斥力を生じさせて、パウダ１５を
小物体１６より剥離するので、前記実施例と同様の効果
を得ることができる。Therefore, in this embodiment as well, an electrical repulsion is generated between the small object 16 and the powder 5 to separate the powder 15 from the small object 16, so that the same effect as in the previous embodiment can be obtained. .
なお、上記実施例の場合も、その変形として、放電極１
３を接地し、回転ドラム２１に高電圧を印加することが
可能である。In addition, also in the case of the above embodiment, as a modification thereof, the discharge electrode 1
3 is grounded and a high voltage can be applied to the rotating drum 21.
第１図は本発明の第１実施例を示す概略構成、第２図は
本発明の第２実施例を示す概略構成図、第３図は粒状層
集塵装置の概略構成図、第４阻は同装置の再生部の一例
を示す概略構成図、第５図は同装置の再生部の他の例を
示す概略構成図である。
１３・・・放電極、１４・・・導電性メツシュ（対応電
極）、１５・・・導電性パウダ、１６・・・小物体、２
１・・・回転ドラム（対応電極）。
出願人復代理人 弁理士 鈴江武彦
第２図FIG. 1 is a schematic configuration diagram showing a first embodiment of the present invention, FIG. 2 is a schematic configuration diagram showing a second embodiment of the present invention, and FIG. 3 is a schematic configuration diagram of a granular bed dust collector. 5 is a schematic configuration diagram showing an example of the reproduction section of the same device, and FIG. 5 is a schematic configuration diagram showing another example of the reproduction section of the same device. 13... Discharge electrode, 14... Conductive mesh (corresponding electrode), 15... Conductive powder, 16... Small object, 2
1...Rotating drum (corresponding electrode). Applicant Sub-Agent Patent Attorney Takehiko Suzue Figure 2
Claims (1)
電を生じさせ、対応電極に沿つて小物体を移動させるこ
とにより、その小物体の表面に付着した導電性パウダを
対応電極に付着させて上記パウダを小物体より剥離する
ことを特徴とする小物体に付着したパウダの除去方法。By applying a voltage between a corona discharge electrode and a corresponding electrode to generate a corona discharge, and moving a small object along the corresponding electrode, the conductive powder attached to the surface of the small object is caused to adhere to the corresponding electrode. A method for removing powder attached to a small object, characterized in that the powder is peeled off from the small object using a method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60092546A JPS61249519A (en) | 1985-04-30 | 1985-04-30 | Removing method for powder stuck on small body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60092546A JPS61249519A (en) | 1985-04-30 | 1985-04-30 | Removing method for powder stuck on small body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61249519A true JPS61249519A (en) | 1986-11-06 |
Family
ID=14057388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60092546A Pending JPS61249519A (en) | 1985-04-30 | 1985-04-30 | Removing method for powder stuck on small body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61249519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007296488A (en) * | 2006-05-02 | 2007-11-15 | Trinc:Kk | Precipitator |
-
1985
- 1985-04-30 JP JP60092546A patent/JPS61249519A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007296488A (en) * | 2006-05-02 | 2007-11-15 | Trinc:Kk | Precipitator |
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